root/branches/ppalmers-streaming/src/libstreaming/amdtp/AmdtpSlaveStreamProcessor.h

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1 /*
2  * Copyright (C) 2005-2007 by Pieter Palmers
3  *
4  * This file is part of FFADO
5  * FFADO = Free Firewire (pro-)audio drivers for linux
6  *
7  * FFADO is based upon FreeBoB.
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License version 2.1, as published by the Free Software Foundation;
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with this library; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21  * MA 02110-1301 USA
22  */
23
24 #ifndef __FFADO_AMDTPSLAVESTREAMPROCESSOR__
25 #define __FFADO_AMDTPSLAVESTREAMPROCESSOR__
26
27 /**
28  * This class implements IEC61883-6 / AM824 / AMDTP based streaming
29  */
30 #include "AmdtpReceiveStreamProcessor.h"
31 #include "AmdtpTransmitStreamProcessor.h"
32 #include "../util/cip.h"
33
34 #include "debugmodule/debugmodule.h"
35
36 #include <libiec61883/iec61883.h>
37 #include <pthread.h>
38
39 #define AMDTP_MAX_PACKET_SIZE 2048
40
41 #define IEC61883_STREAM_TYPE_MIDI   0x0D
42 #define IEC61883_STREAM_TYPE_SPDIF  0x00
43 #define IEC61883_STREAM_TYPE_MBLA   0x06
44
45 #define IEC61883_AM824_LABEL_MASK             0xFF000000
46 #define IEC61883_AM824_GET_LABEL(x)         (((x) & 0xFF000000) >> 24)
47 #define IEC61883_AM824_SET_LABEL(x,y)         ((x) | ((y)<<24))
48
49 #define IEC61883_AM824_LABEL_MIDI_NO_DATA     0x80
50 #define IEC61883_AM824_LABEL_MIDI_1X          0x81
51 #define IEC61883_AM824_LABEL_MIDI_2X          0x82
52 #define IEC61883_AM824_LABEL_MIDI_3X          0x83
53
54 namespace Streaming {
55
56 class AmdtpSlaveReceiveStreamProcessor;
57
58 class AmdtpSlaveTransmitStreamProcessor
59     : public AmdtpTransmitStreamProcessor
60 {
61
62 public:
63     AmdtpSlaveTransmitStreamProcessor(int port, int framerate, int dimension);
64
65     virtual ~AmdtpSlaveTransmitStreamProcessor();
66
67     enum raw1394_iso_disposition
68             getPacket(unsigned char *data, unsigned int *length,
69                     unsigned char *tag, unsigned char *sy,
70                     int cycle, unsigned int dropped, unsigned int max_length);
71
72 };
73
74 class AmdtpSlaveReceiveStreamProcessor
75     : public AmdtpReceiveStreamProcessor
76 {
77
78 public:
79     AmdtpSlaveReceiveStreamProcessor(int port, int framerate, int dimension);
80
81     virtual ~AmdtpSlaveReceiveStreamProcessor();
82
83     enum raw1394_iso_disposition putPacket(unsigned char *data, unsigned int length,
84                     unsigned char channel, unsigned char tag, unsigned char sy,
85                     unsigned int cycle, unsigned int dropped);
86
87 };
88
89
90 } // end of namespace Streaming
91
92 #endif /* __FFADO_AMDTPSLAVESTREAMPROCESSOR__ */
93
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